Table of Contents
Advertisement
2: Power
Table 2-1: Module power states
State
Details
•
Normal
Module is active
(Default
•
Default state. Occurs when VCC is first applied, Full_Card_Power_Off# is
state)
deasserted (pulled high), and W_DISABLE#1 is deasserted
•
Module is capable of placing / receiving calls, or establishing data connections on the
wireless network
•
Current consumption is affected by several factors, including:
•
Radio band being used
•
Transmit power
•
Receive gain settings
•
Data rate
•
Low power
Module is active
('Airplane
•
Module enters this state:
mode')
•
Under host interface control:
·
·
•
Automatically, when critical temperature or voltage trigger limits have been
reached))
Rev 1 Dec.12
Proprietary and Confidential - Contents subject to change
Power supply
The host provides power to the EM7355 through multiple power and
ground pins. The host must provide safe and continuous power (via
battery or a regulated power supply) at all times; the module does not
have an independent power supply, or protection circuits to guard
against electrical issues.
For detailed pinout and voltage / current requirements of this module,
see the AirPrime EM7355 Product Technical Specification &
Customer Design Guidelines.
Module power states
The module has five power states, as described in
Host issues AT+CFUN=0 ([1] AT Command Set for User Equipment (UE)
(Release 6) (Doc# 3GPP TS 27.007))), or
Host asserts W_DISABLE#1, after AT!PCOFFEN=0 has been issued.
2
Table
2-1.
9
Hide quick links:
Advertisement
Table of Contents
